三维数字城市海量数据建模与模型优化技术应用.doc

三维数字城市海量数据建模与模型 优化技术应用 罗海燕 刘新定 曾庆 （湖南省第一测绘院，湖南 衡阳 421001） 【摘要】现代地理信息系统技术和虚拟现实技术的发展已经为构建整个城市的三维数字景观模型奠定了技术基础，通过虚拟现实技术建立的城市真三维地图，为城规划建设与综合管理提供可持续发展数字化数据基础WANG Yongjie1,2 ZHANG Wei2 LI Hui1,2 1 Tianjin Institute of Geotechnical InvestigationSurveying 2 Tianjin StarGIS Information Engineering Co.,Ltd. Abstract: The development of the modern Geographic Information System and virtual reality technology has been the technical foundation for building the three-dimensional digital model of the entire city. By using virtual reality technology, urban landscape of three-dimensional digital model can be established so as to do three-dimensional urban planning and architectural design . This article introduces the basic principles of the Digital City 3D landscape models at first, and then presents and discuses various terrain features elements of the modeling techniques and model optimization technology . Keywords: Digital City, Three Dimension Modeling, Model Optimization Technology, GIS, Dynamic Display Scene  作者基本情况表 姓名 曾庆 性别 男 职称 助理工程师 工作单位 天津市星际空间地理信息工程有限公司 职务 部门主任工程师 联系电话传真 022 通信地址 天津市西青区华苑产业园区海泰绿色产业基地M4座 邮编 300384 E-mail